Fluorescent calix[4]triazole for selective fluoride anion sensing.

ABSTRACT: Fluoride ions (F^-) play an important role in preventing cavities and treating osteoporosis, but excessive exposure can lead to serious health problems such as fluorosis and kidney damage. These dual characteristics highlight the need for selective and sensitive methods to detect fluoride ions for health monitoring. Accordingly, in this study, we investigated the anion-binding ability of Py-CT4, a fluorescent chemosensor in which pyrene is linked to calix[4]triazole via an ester linker. Notably, Py-CT4 exhibited significant fluorescence quenching for F^- compared to other anions, and its fluorescence intensity gradually decreased with increasing F^- concentration. This phenomenon is driven by electron transfer from calix[4]triazole to pyrene, initiated

SUBMITTER: Cho J 

PROVIDER: S-EPMC11808293 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature